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Weak current intervention artificial wetland system for efficiently degrading parachloronitrobenzene and operation method

A constructed wetland system, p-chloronitrobenzene technology, applied in chemical instruments and methods, water/sludge/sewage treatment, biological water/sewage treatment, etc., can solve problems such as poor stability, reduced performance, and low degradation rate , to achieve simultaneous removal, reduce the production of greenhouse gas nitrous oxide, and ensure the effect of denitrification performance

Pending Publication Date: 2022-03-11
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the use of anaerobic and anoxic processes has the disadvantages of low degradation rate and poor stability.
In addition, p-chloronitrobenzene may inhibit biological activity at certain concentrations, thereby reducing the performance of biotechnology-based processes

Method used

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  • Weak current intervention artificial wetland system for efficiently degrading parachloronitrobenzene and operation method
  • Weak current intervention artificial wetland system for efficiently degrading parachloronitrobenzene and operation method
  • Weak current intervention artificial wetland system for efficiently degrading parachloronitrobenzene and operation method

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Embodiment 1

[0038] combine figure 1 Further illustrate technical scheme of the present invention, as follows:

[0039] The purpose of the present invention is to strengthen the denitrification performance of the constructed wetland at low temperature through the intervention of weak current; Microbial toxicity of p-chloronitrobenzene, so as to ensure the denitrification performance of the system under the stress of p-chloronitrobenzene. In order to achieve this purpose, the invention provides a weak electric intervention constructed wetland system for efficiently degrading p-chloronitrobenzene , its treatment objects are p-chloronitrobenzene and nitrogen elements in sewage, mainly composed of vertical subsurface flow artificial wetland carrier system (plant 1, water distribution pipe 2, filler 3, U-shaped outlet pipe 5, drainage pipe 6), bioaugmentation Synergistic electrode module 4, power supply system (external circuit wire 10, DC power supply 11, resistor 12), real-time monitoring s...

Embodiment 2

[0055] combine figure 2 Further illustrate technical scheme of the present invention, as follows:

[0056] The present invention mainly consists of a vertical undercurrent artificial wetland carrier system (plant 1, water distribution pipe 2, filler 3, U-shaped outlet pipe 5, drainage pipe 6), bio-augmentation synergistic electrode module 4, power supply system (external circuit wire 10, DC Power supply 11, resistance 12), real-time monitoring system (reference electrode 7, computer 8, data collector 9).

[0057] figure 2 Among them, the bio-augmentation synergistic electrode module 4 uses multiple sets of bio-electrodes to form an integrated integrated module, so as to realize the reasonable amplification of the electrode module. All the other are with embodiment 1.

[0058] The operation method of the present invention is basically the same as that of Embodiment 1. After the electrode is modularized, it can provide application forms under different treatment scales for ...

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Abstract

The invention provides a weak current intervention artificial wetland system for efficiently degrading parachloronitrobenzene, which is used for treating parachloronitrobenzene and nitrogen element in sewage and polluted water, and comprises an artificial wetland carrier system, a biological enhancement synergistic electrode module, a power supply system and a real-time monitoring system. The invention also provides an operation method of the weak current intervention artificial wetland system for efficiently degrading parachloronitrobenzene. The constructed wetland system has the beneficial effects that the bioelectrochemical system is coupled with the constructed wetland system to form a weak current intervention constructed wetland system for efficiently degrading parachloronitrobenzene, rapid electron transfer of the bioelectrochemical system is fully utilized, efficient and rapid degradation of parachloronitrobenzene which is a refractory organic pollutant by the constructed wetland is realized, and the degradation efficiency of the parachloronitrobenzene is improved. The problem that pollutants difficult to degrade are difficult to remove in the constructed wetland is solved.

Description

technical field [0001] The invention relates to a constructed wetland system, in particular to a weak current intervention constructed wetland system and an operation method for efficiently degrading p-chloronitrobenzene. Background technique [0002] A constructed wetland (CW) is a bioengineered system for treating sewage in a sustainable, environmentally friendly manner. This technology is an amendment to natural wetlands. By artificially optimizing the process of wetland generation, wetlands are controllable, stable, and functionally diverse. Although constructed wetlands are widely recognized as an ecological technology for advanced treatment of nitrogenous wastewater, control of eutrophication, etc., it was originally designed to effectively treat untreated, primary, secondary or tertiary Treated wastewater, such as domestic, drainage, mining, runoff, industrial and agricultural wastewater. The gradual degradation of the functional diversity of constructed wetlands in...

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F3/34C02F101/34C02F101/36C02F101/38
CPCC02F3/32C02F3/34C02F2101/36C02F2101/38C02F2101/34
Inventor 方颖珂王鸿程王爱杰刘莹罗双
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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